Analog Devices VisualDSP++ 5.0 Service Manual page 219

See
"adi_dcb_Terminate"
along with any other requests. The following code describes the direct
approach:
adi_dcb_Remove(
p_DCB_handle,
ClientCallback
);
Finally, if required, the queue can be closed and the DCB manager
terminated:
adi_dcb_Close(
p_DCB_handle,
);
adi_dcb_Terminate();
VisualDSP++ 5.0 Device Drivers and System
Services Manual for Blackfin Processors
Deferred Callback Manager
for further details and an example of its use
// handle to required queue server
// Address of callback function to
// flush
// handle to required queue server
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